Journal
Things worth knowing before you buy, and after
How to size a heater to the room you actually have, what a flame effect is worth when you do not want the heat, and the four rules that keep a heater uneventful. Written to be useful first — the search traffic is a side effect.
Sizing
What size space heater do you actually need?
The rule of thumb is 10 watts per square foot — but ceilings, windows and outside walls move that number more than most guides admit. Here is how to size a room properly.
October 25, 2026 · 7 min read
Read the guideFlame effect · 5 min
A fire on the wall in October, without heating the room
The flame effect on these heaters runs independently of the element. That sounds like a gimmick until you realize it makes a fireplace usable for eight months instead of four.
October 22, 2026
Safety · 6 min
The four space heater rules that actually prevent fires
Not the full CPSC list — the four that account for nearly every residential heater fire. Two minutes to read, and they are the ones people break.
October 20, 2026